Message ID | 722d864e912cb0af6534b1ddef52ad3969ee9728.1490024477.git.ego@linux.vnet.ibm.com (mailing list archive) |
---|---|
State | Changes Requested |
Headers | show |
diff --git a/arch/powerpc/platforms/powernv/idle.c b/arch/powerpc/platforms/powernv/idle.c index 419edff..f335e0f 100644 --- a/arch/powerpc/platforms/powernv/idle.c +++ b/arch/powerpc/platforms/powernv/idle.c @@ -283,8 +283,16 @@ unsigned long pnv_cpu_offline(unsigned int cpu) } else if ((idle_states & OPAL_PM_SLEEP_ENABLED) || (idle_states & OPAL_PM_SLEEP_ENABLED_ER1)) { srr1 = power7_sleep(); - } else { + } else if (idle_states & OPAL_PM_NAP_ENABLED) { srr1 = power7_nap(1); + } else { + /* This is the fallback method. We emulate snooze */ + while (!generic_check_cpu_restart(cpu)) { + HMT_low(); + HMT_very_low(); + } + srr1 = 0; + HMT_medium(); } return srr1;